Fire and water proof composition of matter to be used for building purposes.



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ROBERT LAYBURN AND PATRICK JOSEPH REILLY, OF BROOKLYN,

' NEW YORK.

FIRE AND WATER PROOF COMPOSITION OF MATTER TO; BE USED FOR BUILDING PURPUSES.

Specification of Letters Patent. Application fileid January 12, 1905. Serial No. 240,831.

Patented July 25, icon.

To all whom it mm concern:

Beitknown that we, Ronnnr LAYBURN and PA'rmoii J osarrr RnILLY',citizens of the United States, residing at Brooklyn, in the countyof Kings and State of New York, have invented certain new and useful improvements in Fire and Viater Proof Composition of Mattor to be Used for Building Purposes; and we do declare the following tohe a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it'appertains to make and use the same.

Our composition consists of the following ingredients combined in the proportions stated, viz: water, fifteen per cent; dextrine, two per c nt; glycerin, .two per cent; magnesia,- twenty five per cent; magnesium chlorid, ten per cent., and forty-six per cent. of some basic body or compound consisting of one or more of the following substances: sand, wood-dust, marble-dust, powdered ashes or cinders, powdered granite, and gypsum.-

These ingredients are to be thoroughly mingled by agitation and when so mixed form an excellent fire and water proof composition for general building purposes. in mixing these elements the water, dcxtrine, glycerin, magnesia, and magnesiumchlorid are combine l to form a composition which servesas a binder, and the basic body orcompound is then added, the latter forming the body of the composition and is held together by thetbinder.

in order to obtain a very eiiicient fireproof composition, I may combine the following substances: water, iifteen per cent.; glycerin, two per cent. dextrine, two per cent. magnesia, twenty-five pdr cent; magnesium chlorid, ten per cent; sand, twenty per cent:; sawdust, twenty-six per cent.

It will be seenthat in the above the sand and sawdust form the body of the composition and are held together by the binder, which consists of water, magnesia, magnesium chlorid, glycerin, and dextrine. For the composition which is particularly adapted for use tor making subbasins, molding, &c., we may substitute powdered ashes for the wood-dust and sand in' the above formulathat is, we

may use forty-six per cent. of the powdered ashes or cinders in place of twenty per cent. of sand and twenty-six per cent of sawdust.

A very eiiicient waterproof composition for use in making foundations, cellars, sidewalks, and the like may be made from the'following' substances: water,'fifteen per cent; glycerin, two per cent; dextrine, two per cent; magnesia, twenty five per cent; magnesium chlorid, ten per cent; sand, forty-six per cent.

In the above it will be seen forty-six per cent. of sand is substituted for thesame per cent.- of powdered ashes in the foregoing formula.

By substituting powdered granite for the sand in the'above the composition produced will be very eflic ient for making bricks and artificial stone, and by similarly substituting marble-dust for the same the resulting composition will be well adapted for making tiles, plastic casts, and the like.

It willbe seen that in each of the abovenamed formula we employ dextrine, glycerin, magnesia, and magnesium chlorid, together with one or more of the following diluents or bodies: wood-dust, sand, marble-dust, powdered ashes, powdered granite, plaster, and add suficient water to bring the composition to its proper test for strength.

, What we claim, and desire to secure by LettersPatent. is

v 1. The herein described composition of matter, consisting of water, magnesia, magnesium chlorid, glycerin, deztrine, and a basic body or compound.

2. The herein described composition of matter consisting of a binding composed of water, magnesia,- magnesium chiorid, glycerin and dextrine, and a basic body or compound composed of one or more of the following substances, sand, wood-dust, marbledust, powdered granite, powdered ashes, gypsum.

3. The herein'-' described composition of matter consisting of fifteen per cent. ofwater, twenty-five per cent. of magnesia, ten per cent. of magnesium chlorid, two per cent. of glycwin (mm per cent of dextrine and fQMay-six our hmnds in presence of Wm subscribing Witpavcan b, 02? a sulimble body or compound. messes.

4;. The hemmclescnibed compusimon of f q '14 13 EN. mafismr consisting of WMEEIF, magnesm may MQBERT AX in tesfiimmay whereof we ham hereunfw set JAME LAYBURN. 

